6 Questions 8 Answers 0 Followers
Questions related from Rajnikant Bhikhubhai Mardia
How to seperate two components by RP-HPLC having very near pKa values ie 12.98 and 13.38?
09 August 2021 7,546 5 View
How to remove toxic heavy metal traces like mercury, lead, cadmium etc. from solid herbal material or food material? is there any specific methodology or technique to remove metal traces from...
07 July 2020 4,652 3 View
How to confirm metalic co ordinate bond in metal complexes by the NMR spectrum? What is the effect of co ordinate bond on the chemical shift value of nearby protons? How it will be predicted in...
14 December 2019 9,536 1 View
CCl4 and CS2 are having dipole moment zero or no dipole. But both are having characteristic vibrational bands in the mid IR range. What can be the reason/s for that?
16 January 2018 871 1 View
In PMR generally amine (NH2) and hydroxy (OH) proton/s do not couple with nearby proton/s and give singlet signals. But in some cases they couple with neighbouring protons and produce peak...
01 September 2015 926 8 View
In PMR study of aldehyde compounds, aldehydic proton shows generally singlet signal. Why it is not splitting according to neighbour hood protons? Aldehyde proton is not exchangable with solvent....
16 August 2015 2,187 10 View
